package com.zhuang.chapter20.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

/**
 * account表 删除一条记录
 */
public class JDBCDemo4 {
	public static void main(String[] args) {
		Connection conn = null;
		Statement stmt = null;
		try {
			// 1. 注册驱动
			Class.forName("com.mysql.jdbc.Driver");
			// 2.获取连接对象
			conn = DriverManager.getConnection("jdbc:mysql:///test", "root", "root");
			// conn = JDBCUtils.getConnection("jdbc:mysql:///test", "root", "root");
			// 3.定义sql
			String sql = "delete from account where id = 3";
			// 4.获取执行sql对象
			stmt = conn.createStatement();
			// 5.执行sql
			int count = stmt.executeUpdate(sql);
			// 6.处理结果
			System.out.println(count);
			if (count > 0) {
				System.out.println("删除成功！");
			} else {
				System.out.println("删除失败");
			}

		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		} catch (SQLException e) {
			e.printStackTrace();
		} finally {
			// 7.释放资源
			if (stmt != null) {
				try {
					stmt.close();
				} catch (SQLException e) {
					e.printStackTrace();
				}
			}
			if (conn != null) {
				try {
					conn.close();
				} catch (SQLException e) {
					e.printStackTrace();
				}
			}
		}
	}
}
